In case this question keeps you up at night...

Now you have an entire book to answer this is and many other questions I can't imagine anyone really thinking about. Like the burning "What do dead people wear?" Answer: Nothing. They are in energy form. Energy likes to be nekkid.  WTF?! Who has time to think about this? Furthermore, why didn't I think of this brilliant book idea? Basically the author can say anything she wants, since she is talking about dead people. Who is going to call her bluff? Damn. Another great idea that should have been mine. I love making stuff up!!

P.S. - The answer is yes, they do watch you shower. They are also able to watch you have sex. So... now you know.